Test Code MAL24 Albumin, 24-Hour Urine with Creatinine
Additional Codes
Epic: LAB13010
Quest: 15281
Specimen Required
Patient Preparation: Exercise within 24 hours, infection, fever, congestive heart failure, marked hyperglycemia, and marked hypertension may elevate urinary albumin excretion over baseline values.
Specimen Type: Urine
Collection Container/Type
Preferred: Unpreserved 24-hour urine
Acceptable: Quest Urinalysis transport tube (yellow-top, blue fill line, preservative tube)
Submission Container/Tube: Plastic vial
Specimen Volume: 5 mL
Collection Instructions:
- Collect urine for 24 hours.
- Keep specimen refrigerated during collection.
- Mix well before taking 5-mL aliquot.
- Specify total volume on container & requisition or electronic order.
Specimen Minimum Volume
2 mL
Specimen Stability
Room temperature: 7 days
Refrigerated: 7 days
Frozen:- 28 days
Reference Range
Albumin, 24 hour urine | <30 mg/24 h |
Albumin, 24 hour urine | <20 mcg/min |
Creatinine, 24-Hour Urine
<3 Years | Not established |
3-8 Years | 0.10-0.80 g/24 h |
9-12 Years | 0.20-1.40 g/24 h |
13-17 Years | 0.40-1.90 g/24 h |
>17 Years | 0.50-2.15 g/24 h |
The ADA defines abnormalities in albumin excretion as follows:
Category | Result (mg/24 h) | Result (mcg/min) |
Normal | <30 | <20 |
Microalbuminuria | 30-299 | 20-199 |
Clinical Albuminuria | ≥300 | ≥200 |
The ADA recommends that at least two of three specimens collected within a 3-6 month period be abnormal before considering a patient to be within a diagnostic category.
Rejection Due To
Acid preserved urine
Day(s) and Time(s) Performed
Daily
Report Available
1 day
Clinical Significance
Albumin excreted in the urine (Microalbumin) is a sensitive marker of Nephropathy. It is used to screen for early renal disease in diabetic patients.
Method Name
Turbidometric
CPT Code(s)
82043, 82570
Performing Laboratory
Quest Diagnostics Nichols Institute
14225 Newbrook Drive
Chantilly, VA 20153
Includes
Albumin, 24-hour urine
Creatinine, 24-hour urine
Aliases
Microalbumin
Lab Processing Instructions (Lab Use Only)
- Measure the total volume of the specimen.
- Mix the specimen well.
- Order 24URN in Soft and enter prompted information.
- Aliquot specimen into platic vial.